The requirements being placed on modern drainage systems in terms of leak-tightness are increasing and have been established as standard in the related regulations and norms. The requirements have to be applied from the outset in order to ensure that surface water is safely drained away as part of a controlled rainwater management system.
The ACO DRAIN® Multiline Seal in drainage system collects polluted surface water and transports it for treatment, recycling or further use without losing any through leakage. The Seal in technology comprises watertight, frost-resistant polymer concrete trench bodies and a built-in two-component EPDM seal on the trench joint as standard. This combination guarantees that the trenches remain watertight for more than 72 hours of continuous use and thus much longer than the 30 minutes specified under DIN EN 1433.
In addition to NW 100, nominal widths of 150 and 200 are now available. Galvanised steel and stainless steel edge protectors can also be provided as an option.
The Multiline HD Seal in system is another new innovation, with a variant available with a cast iron edge protector. The Zusatz HD comprises a reinforced trench drain with a 12-mm cast edge, which allows it to be installed directly into areas in which lorries and heavy goods vehicles in load class D 400 pursuant to DIN EN 1433 operate. When used in combination with cast iron grates with longitudinal bars, this also provides new options in the challenging task of designing open spaces. In addition, our extensive range of grates has been expanded to include an improved slotted frame (up to NW 200).